fix: 로그아웃시 UserDefaults에서 푸시토큰을 삭제하지 않도록 수정

app/src/main/java/kr/co/vividnext/sodalive/common/SharedPreferenceManager.kt

@@ -27,7 +27,11 @@ object SharedPreferenceManager {
     }
 
     fun clear() {
-        sharedPreferences.edit { it.clear() }
+        sharedPreferences.edit { editor ->
+            sharedPreferences.all.keys
+                .filterNot { it == Constants.PREF_PUSH_TOKEN }
+                .forEach { editor.remove(it) }
+        }
     }
 
     private inline fun SharedPreferences.edit(operation: (SharedPreferences.Editor) -> Unit) {